Sentence 5

pollutant radioactive ferryboat helicopter disposal

1. The __________ isotope had a half-life of several thousand years, making it a long-lasting source of radiation.

2. The __________’s horn echoed across the bay, signaling its departure from the dock and heralding the start of the journey.

3. The factory implemented strict measures to reduce the release of __________ into the surrounding environment.

4. The hazardous waste was carefully sealed and labeled for proper __________ at the designated facility.

5. The __________ hovered above the field, ready to airlift the injured hiker to safety.

decay discarding place worsen motor rubbish removal car site dumping litter position

1. locality

______________________________

2. deteriorate

______________________________

3. refuse

______________________________

4. disposal

______________________________

5. automobile

______________________________

Sentence 5 population refuse transportation

The greater the 1. __________ there is in a locality, the greater the need there is for water, 2. __________, and disposal of 3. __________.

1. 地下水污染对公共健康和环境构成重大威胁。(groundwater contamination, pose a threat)

______________________________

2. 自行车是一种环保的交通方式：零排放而且减少空气污染。(bicycle, eco-friendly)

______________________________

3. 回收塑料的挑战之一是回收设施有限，以及处理这些材料的成本高昂。(recycle, facility, process)

______________________________

4. 客机促进全球互联互通，支持国际贸易和旅游业。(airliner, connectivity, tourism)

______________________________

5. 人口增长率受出生率、死亡率和移民的影响，是人口研究中的一个关键参数。(population, parameter, demographic)

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